Supports heavy lenses when using 19 mm studio offset rods; Snap-On design enabling you to attach the support Snaps onto 19 mm studio rods without having to remove other rod-mounted accessories; Simply click on the side button to release the clamp from the rods; Reversible 1/4"-20 and 3/8"-16 threaded mounting stud, allowing you to quickly fix your lenses; Vertical travel…